Add P300 fixture (#717)

* Add P300 fixture

* fixture after update

* Add tests for p300

kasa/tests/test_discovery.py

@@ -27,7 +27,16 @@ from kasa.discover import DiscoveryResult, _DiscoverProtocol, json_dumps
 from kasa.exceptions import AuthenticationException, UnsupportedDeviceException
 from kasa.xortransport import XorEncryption
 
-from .conftest import bulb, bulb_iot, dimmer, lightstrip, new_discovery, plug, strip
+from .conftest import (
+    bulb,
+    bulb_iot,
+    dimmer,
+    lightstrip,
+    new_discovery,
+    plug,
+    strip,
+    strip_iot,
+)
 
 UNSUPPORTED = {
     "result": {
@@ -67,7 +76,7 @@ async def test_type_detection_bulb(dev: SmartDevice):
         assert d.device_type == DeviceType.Bulb
 
 
-@strip
+@strip_iot
 async def test_type_detection_strip(dev: SmartDevice):
     d = Discover._get_device_class(dev._last_update)("localhost")
     assert d.is_strip